Design your process

Open source process simulator

OpSim is an open source Chemical Engineering Process Simulator with a user friendly drag-and-drop graphical user interface and an underlying high performance simulation engine.

 Learn about OpSim

 Download OpSim 0.01

Why OpSim?

We believe that making something great starts with the basis. OpSim is well designed software with the user in mind from the beginning. OpSim is cross-platform and runs equally well on Linux, Windows and Macintosh computers. It comes with a large component and module database. No need to start hacking yourself, but if you want, you can easily extend the functionality with Python.

You are free to use OpSim for any purpose, including commercially or for education. This freedom is being defined by OpSim’s GNU General Public License (GPL).

Crazy Fast

Performance is not just an afterthought, we baked it in from the start!

Easy to build

Simple text files means Grav is trivial to install, and easy to maintain

Awesome Technology

Grav employs best-in-class technologies such as Twig, Markdown & Yaml

Super Flexible

From the ground up, with many plugin hooks, Grav is extremely extensible

Abundant Plugins

A vibrant developer community means 200+ plugins available to download

Free / Open Source

Grav is an open source project, so you can spend your money on other stuff

  • Physical properties

    Simulations of physical properties of pure components and mixtures

  • Numerical solver

    Simulation of equipment performance

  • Scriptable

    Script and adjust every aspect of OpSim

  • Mass and energy balances

    A great way to make closed energy and mass balances

  • Process simulation data

    Export to applications like Open Office and MS Excel

Stuffed Full of Features

Check out small smattering...

Markdown Syntax
Twig Templating
Smart Caching
Flexible Taxonomies
Simple Install
Powerful Plugins
Intuitive UI
Users & Roles
Image Processing
On Github
Responsive Design
CLI Power